GB1462468A - Operation of mercury-cathode electrolysis cells - Google Patents

Operation of mercury-cathode electrolysis cells

Info

Publication number
GB1462468A
GB1462468A GB1832774A GB1832774A GB1462468A GB 1462468 A GB1462468 A GB 1462468A GB 1832774 A GB1832774 A GB 1832774A GB 1832774 A GB1832774 A GB 1832774A GB 1462468 A GB1462468 A GB 1462468A
Authority
GB
United Kingdom
Prior art keywords
brine
treatment
april
excess
content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1832774A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1832774A priority Critical patent/GB1462468A/en
Priority to AU80058/75A priority patent/AU487325B2/en
Priority to BE155769A priority patent/BE828387A/en
Publication of GB1462468A publication Critical patent/GB1462468A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

1462468 Brine IMPERIAL CHEMICAL INDUSTRIES Ltd 4 April 1975 [26 April 1974] 18327/74 Heading C1A [Also in Division C7] The Sr-content of crude brine may be reduced by treatment with Na 2 CO 3 and Ca(OH) 2 using sufficient Na 2 CO 3 to give an excess CO 3 content of 500-800 mg/l., optionally followed by (1) standing of the brine to allow desupersaturation and filtration, (2) addition of CaCl 2 and NaCO 3 solutions, optionally in the presence of seed crystals of CaCO 3 and SrCO 3 , (3) addition of BaCl 2 , (4) treatment with an ion-exchange resin containing imino-di-acetic acid groups, or (5) mixing with waste brine from an electrolysis cell. Alternatively, when the waste cell brine is to be resaturated and recycled, the fresh NaCl may be derived by evaporation of an Sr-purified brine, e.g. prepared by treatment with excess Co 3 as above. The product contains less than 3 mg/l. Sr and is useful for electrolysis.
GB1832774A 1974-04-26 1974-04-26 Operation of mercury-cathode electrolysis cells Expired GB1462468A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1832774A GB1462468A (en) 1974-04-26 1974-04-26 Operation of mercury-cathode electrolysis cells
AU80058/75A AU487325B2 (en) 1974-04-26 1975-04-11 Operation of mercury-cathode cells
BE155769A BE828387A (en) 1974-04-26 1975-04-25 PROCESS FOR INHIBITIONING THE FORMATION OF LARGE MERCURY IN A MERCURY CATHODE ELECTROLYSIS CELL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1832774A GB1462468A (en) 1974-04-26 1974-04-26 Operation of mercury-cathode electrolysis cells

Publications (1)

Publication Number Publication Date
GB1462468A true GB1462468A (en) 1977-01-26

Family

ID=10110573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1832774A Expired GB1462468A (en) 1974-04-26 1974-04-26 Operation of mercury-cathode electrolysis cells

Country Status (2)

Country Link
BE (1) BE828387A (en)
GB (1) GB1462468A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339572A1 (en) * 1976-01-30 1977-08-26 Allied Chem PROCESS FOR PURIFYING BRINE CONTAINING DISSOLVED IMPURITIES BASED ON STRONTIUM, CALCIUM AND MAGNESIUM, AND NEW PRODUCTS THUS OBTAINED
EP0067529A2 (en) * 1981-05-14 1982-12-22 The British Petroleum Company p.l.c. Method of inhibiting formation of and breaking of mercury butter in chlor-alkali cells

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339572A1 (en) * 1976-01-30 1977-08-26 Allied Chem PROCESS FOR PURIFYING BRINE CONTAINING DISSOLVED IMPURITIES BASED ON STRONTIUM, CALCIUM AND MAGNESIUM, AND NEW PRODUCTS THUS OBTAINED
EP0067529A2 (en) * 1981-05-14 1982-12-22 The British Petroleum Company p.l.c. Method of inhibiting formation of and breaking of mercury butter in chlor-alkali cells
EP0067529A3 (en) * 1981-05-14 1983-03-16 The British Petroleum Company p.l.c. Method of inhibiting formation of and breaking of mercury butter in chlor-alkali cells
US4391681A (en) * 1981-05-14 1983-07-05 The British Petroleum Company P.L.C. Method of inhibiting formation of and breaking of mercury butter in chlor-alkali cells

Also Published As

Publication number Publication date
BE828387A (en) 1975-08-18
AU8005875A (en) 1976-10-14

Similar Documents

Publication Publication Date Title
GB907321A (en) Improvements in the manufacture of lactic acid
GB1462468A (en) Operation of mercury-cathode electrolysis cells
GB1444241A (en) Preparation of freshwater from sea water
HU902470D0 (en) Process for the production of a composition containing calcium pantothenate
Rudolfs et al. Effect of Sulphate Salts on \rmH_2 S Production in Sludge Digestion
ES8600725A1 (en) Method of producing manganese sulfate solutions of improved purity
Turekian et al. Clay-and carbonate-accumulation rates in three South Atlantic deep-sea cores
GB1143336A (en) Production of sodium silicofluoride
GB1229360A (en)
GB2232999A (en) Hypobromous acid produced by electrolysis for treatment of water
GB1446676A (en) Process for agglomerating particles of polytetrafluoroethylene
GB1312709A (en) Method of producing calcium and sodium chlorides
Rippey et al. The variation of calcium, magnesium, sodium and potassium concentration, pH conductivity in lakes in Northern Ireland.
JPS57123822A (en) Preparation of calcite-type calcium carbonate crystal
SU727565A1 (en) Method of halotolerant and halophilic microorganism control at hydrocarbon storage in the presence of salt solution
GB1442504A (en) Preparation of sodium dichloroisocyanurate dihydrate composition
GB1191571A (en) Process for Preparing Sodium Percarbonate
IL44878A (en) Process for separating ionized substances from their aqueous solutions
SU1036005A1 (en) Method of synthesis of sodium 2,3-dimercaptopropanesulfonate
GB1531459A (en) Preparation of solutions of a basic aluminium compound and their use in water treatment
DE2831209C2 (en)
SU709535A1 (en) Method of ammoniation of sodium chloride solution
ATE39678T1 (en) PROCESS FOR THE PRODUCTION OF SODIUM BICARBONATE BY CONVERSION OF DOUBLE SALTS CONTAINING NEAR CO3.
SU1736093A1 (en) Method for production of soda ash
SU695967A1 (en) Method of preparing sodium chloride

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee